Lettice Digby, 1st Baroness Offaly

Lettice FitzGerald, 1st Baroness Offaly was an Irish noblewoman and a member of the FitzGerald dynasty. Although she became heiressgeneral to the Earls of Kildare on the death of her father, the title instead went to the next FitzGerald male heir when her grandfather, the 11th Earl of Kildare died in 1585. In 1620 she was created suo jure Baroness Offaly by King James I of England.

Lettice was born in about 1580, the only child and heir of Gerald FitzGerald, Lord Offaly by Catherine Knollys, who was a younger daughter of Catherine Carey and Sir Francis Knollys. Lettices maternal greatgrandmother was Mary Boleyn, elder sister of Anne Boleyn, the second queen consort of King Henry VIII of England, who had been the lover of Mary prior to his courtship of Anne and possibly the biological father of her daughter Catherine. Her paternal grandparents were Gerald FitzGerald, 11th Earl of Kildare and Mabel Browne. One of her aunts, and after whom she was likely named, was Lettice Knollys, the celebrated rival of Queen Elizabeth I, who was also a distant cousin.

Source: Wikipedia